Sep 12, 2010 8:20 PM EST

Jason Giambi came off the bench and became the latest late-inning star for the surging Rockies.

Giambi connected for a pinch-hit, two-run homer with two outs in the bottom of the ninth inning and Colorado beat the Arizona Diamondbacks 4-2 on Sunday to extend its winning streak to 10 games, according to an Associated Press report.

Via AP